Harvesting head



FIG. 1 is a left-side perspective view of a harvesting head, with broken lines showing various features for illustrative, environmental purposes only and forming no part of the claimed design;

FIG. 2 is a front elevation view thereof;

FIG. 3 is a rear elevation view thereof;

FIG. 4 is a left side elevation view thereof;

FIG. 5 is a right side elevation view thereof;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom plan view thereof. 

The ornamental design for a harvesting head, as shown and described. 